Lubricator.



110. 771,711. PATENTED 001'". 4, 1904.

1:. CLARK.

LUBRIOATOR.

APPLIOATI'ON FILED 001. 26. 1903.

N0 MODEL.

WITNESSES.

w w F 1 A 77'0HNEYS UNITED STATES Patented October 4,1904.

PATENT OFFICE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 771,711, dated October4, 1904.

Applioationfiled October 26,1903. Serial No. 1785M. (N0 model.)

T0 at whom it may concern:

Be it known that I, EDWARD CLARK, a citizen of the United States,residing at Winslow, in the county of Navajo and Territory of Arizona,have made certain new and useful Improvements in Lubricators, of whichthe following is a specification.

My invention is an improvement in lubricators especially designed foruse in connection with the relief-valve of a locomotive steam-chest forthe purpose of feeding graphite or other lubricant into the valves orcylinders of the locomotive while the latter is drifting with the steamshut off; and the invention consists in certain novel constructions andcombinations of parts, as will be hereinafter described and claimed.

In thedrawings, Figure 1 is a sectional view of a portion of asteam-chest of a locomotive with the relief-valve seated as when steamis on. Fig. 2 is a similar view with the valve dropped as when drifting.Fig. 3 is a detail side view of the valve with the feeder-tube. Fig. 4is a cross-section on line i L of Fig. 3. Fig. 5 is a detail sideelevation of a valve and feeder of a somewhat different form from thatshown in Figs. 1, 2, and 3; and Fig. 6 is a crosssection on line 6 6 ofFig. 5.

As before suggested, my invention is especially designed for the feedingof dry graphite into the valves and cylinders of a locomotive when thesteam is shut off and the engine is drifting.

In the construction shown I employ a cup A for the lubricant, which cupis mounted on the casing for the relief-valve B, such casing beingsuitably connected with the locomotivecylinder, as will be understood bythose skilled in the art. In the construction shown the casing C, onwhich the cup A is mounted, is integral with the said cup, is threadedat G into the lower section G? of the casing, and is formed at its lowerend at (J to provide a valve-seat for the valve B. The casing G has atubular portion D, which projects from above into the casing andcommunicates at its upper end with the interior of the cup A and at itslower end with the interior of the casing section C above the Valve seatThe casing is also provided with vents d, leading at their outer ends tothe air and at their inner ends to the interior of the bore D, in whichoperates the, tubular feeder E for the graphite. This feeder E ispreferably connected with and carried by the valve B, being in theconstruction shown integral with the said valve and projecting upwardlytherefrom and operating in the tubular bore D and projecting in theposition shown in Fig. 1 into the cup A. This tubular feeder has theinlet-openings 0 near its upper end, which latter is closed and isprovided with the discharge-openings 0' below such inlet-openings and soarranged that when the valve is lowered to the position shown in Fig. 2the discharge-openings will be exposed, so the graphite in the tubularfeeder may pass out into the casing and thence to the cylinder, as willbe understood from Fig. 2. In this position of the parts theinlet-openings e register with the vents (Z, so the air may pass intothe upper portion of the feeder and permit the graphite to discharge, asindicated in Fig. 2.

When the valve is closed, as shown in Fig. 1, the inlet-openings e arecarried up to a position within the casing A, so the feeder-tube will befilled with the graphite. Then when the feeder-tube lowers lo theposition shown in Fig. 2 the graphite will discharge through theopenings 6, and the further supply of graphite to the feeder will beshut off until when the valve is again closed, all of which will beunderstood from comparison of Figs. 1 and 2. In Figs. 5 and 6 I showasomewhat different construction. In this construction the feeder, whichalso constitutes the valvestem, as in Figs. 1 and 2, isgroovedlongitudinally at Gr, the grooves being of such length that whenthe valve is' closed, as shown in Fig. 1, they may fill with thegraphite from thecup A and when the valve is lowered the graphite withinthe grooves will pass into the casing and thence to the valves andcylinders, as desired.

In operation,the cup being filled with graphite or similar lubricant andsteam being applied,the valve will assume a position, as shown in Fig.1, with its top ports or inlets in communication with the contents ofthe cup, and

the hollow stem or feeder will be filled with the graphite by vibrationand gravitation. When steam is shut off, the valve will drop to theposition shown in Fig. 2, cutting off the top ports from a furthersupply from the cup and establishing communication between said portsand the air-vents (Z. The lower or discharge ports will be uncovered,and air from the vents entering openings 0 in the feeder will permit thegraphite to drop through the discharge'openings into the casing.

As shown, I employ four openings or four grooves in the valve stem orfeeder; but manifestly these may be varied in number, if desired.

It will be noticed that the feeder operates directly in connection withthe lubricant in the cup as distinguished from being inclosed ina tubein the cup.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is 1 1. In a lubricator the combinationsubstantially as herein described, of the casing having a lower section,another section threaded into the lower section, and having its lowerend formed to provide a valve-seat and pro vided with thelubricantcup,with the tubular drop portion extending thence into theupper section of the casing, and with the air-vents communicating withsuch bore between its upper and lower ends, the valve having an u)Wardly-projecting tubular stem or feeder closed at itsupper end andprovided near such end with inlet-ports movable in the seated positionof the valve into register with the interior of the lubricant-cup, andin the open position of the valve into register with the airvents, saidfeeder having below its inlet-open ings discharge-openings whichregister with the interior of the casing in the open position of thevalve, and are closed within the tubular portion of the casing when thevalve is seated, substantially as set forth.

2. The combination with the casing, and the lubricantcup, of the tubularportion depending within the casing for the feeder-stem, and the valvehaving a tubular feeder-stem operating in the tubular portion andprovided with a bore forming a passage for the lubricant, substantiallyas set forth.

3. The combination of the casing having upper and lower sections, theupper section having a valve-seat and provide'dwith the dependingtubular portion forming a guide for the valve stem or feeder, the cup onthe easing, venting ports being provided leading from the air to theinterior of the tubular portion, and such tubular portion openingat itsupper end into the lubrieant-cupand atits lower end into the casing andthe valve having afeeder-stem adapted to receive lubricant from the cupand to discharge same to the easing and to be vented by theair,-vents,.substantially as set forth.

4. As a means for feeding graphite or lubricant to the valves orcylinders of locomotives while drifting, a relief-valve havinga tubularfeeder-stem provided with a passage for the lubricant and with feed anddischarge openings therein, substantially as set'forth.

5. The combination of the casing, the, lubricant-cup, and therelief-valve operating in the casing, and havingastem formingafeeder bywhich. to deliver the lubricant from the lubricant-cup to the casing,the stem being tubular and having feed and discharge 0pen ings,substantiallyas set forth.

EDWARD CLARK.

Witnesses:

WM. PAUL GEARY, CHAS. H. RAW IN.

